The first Earth Day was celebrated on April 22, 1970. An estimated 20 million Americans gathered to demand action on the environment from themselves and their elected officials. The event proved there was a real concern for environmental issues across the country. After the first Earth Day celebration in 1970:
- The Environmental Protection Agency was established.
- The tough Clean Air Act of 1970 was passed.
- The Federal Occupational Health and Safety Act focused on “in-plant pollution” was passed by a partnership of environmental and labor groups.
- Within a few years, such landmarks as the Clean Water Act, the Endangered Species Act and the Resource Conservation and Recovery Act were passed.